Published February 15, 2007
| Version v1
Journal article
MnO spin-wave dispersion curves from neutron powder diffraction
- 1. Department of Earth Sciences, Cambridge University, Downing Street, Cambridge CB2 3EQ (United Kingdom)
- 2. ISIS Facility, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire OX11 0QX (United Kingdom)
- 3. Department of Physics, Oxford University, Clarendon Laboratory, Parks Road, Oxford OX1 3PU (United Kingdom)
Description
We describe a model-independent approach for the extraction of spin-wave dispersion curves from powder neutron total scattering data. Our approach is based on a statistical analysis of real-space spin configurations to calculate spin-dynamical quantities. The RMCPROFILE implementation of the reverse Monte Carlo refinement process is used to generate a large ensemble of supercell spin configurations from MnO powder diffraction data collected at 100 K. Our analysis of these configurations gives spin-wave dispersion curves for MnO that agree well with those determined independently using neutron triple-axis spectroscopic techniques
Additional details
Identifiers
- DOI
- 10.1103/PhysRevB.75.075423;
- arXiv
- arXiv:cond-mat/0601558v2;
Publishing Information
- Journal Title
- Physical Review. B, Condensed Matter and Materials Physics
- Journal Volume
- 75
- Journal Issue
- 7
- Journal Page Range
- p. 075423-075423.9
- ISSN
- 1098-0121
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 39006526
- Subject category
- S75: CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY; S36: MATERIALS SCIENCE; S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS;
- Descriptors DEI
- DIAGRAMS; DISPERSIONS; MANGANESE OXIDES; MONTE CARLO METHOD; NEUTRON DIFFRACTION; NEUTRONS; POWDERS; SPIN; SPIN WAVES
- Descriptors DEC
- ANGULAR MOMENTUM; BARYONS; CALCULATION METHODS; CHALCOGENIDES; COHERENT SCATTERING; DIFFRACTION; ELEMENTARY PARTICLES; FERMIONS; HADRONS; INFORMATION; MANGANESE COMPOUNDS; NUCLEONS; OXIDES; OXYGEN COMPOUNDS; PARTICLE PROPERTIES; SCATTERING; TRANSITION ELEMENT COMPOUNDS
Optional Information
- Notes
- (c) 2007 The American Physical Society